#12145 account for the db's that do not support schema change

plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/model/SQLServerExecutionContext.java

@@ -17,6 +17,7 @@
 package org.jkiss.dbeaver.ext.mssql.model;
 
 import org.jkiss.code.NotNull;
+import org.jkiss.code.Nullable;
 import org.jkiss.dbeaver.DBException;
 import org.jkiss.dbeaver.Log;
 import org.jkiss.dbeaver.ext.mssql.SQLServerConstants;
@@ -73,6 +74,7 @@ public class SQLServerExecutionContext extends JDBCExecutionContext implements D
         return getDataSource().getDatabase(activeDatabaseName);
     }
 
+    @Nullable
     @Override
     public SQLServerSchema getDefaultSchema() {
         if (CommonUtils.isEmpty(activeSchemaName)) {
@@ -98,7 +100,7 @@ public class SQLServerExecutionContext extends JDBCExecutionContext implements D
     }
 
     @Override
-    public void setDefaultCatalog(DBRProgressMonitor monitor, SQLServerDatabase catalog, SQLServerSchema schema) throws DBCException {
+    public void setDefaultCatalog(DBRProgressMonitor monitor, SQLServerDatabase catalog, @Nullable SQLServerSchema schema) throws DBCException {
         if (activeDatabaseName != null && activeDatabaseName.equals(catalog.getName())) {
             return;
         }

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/exec/DBCExecutionContextDefaults.java

@@ -16,6 +16,7 @@
  */
 package org.jkiss.dbeaver.model.exec;
 
+import org.jkiss.code.Nullable;
 import org.jkiss.dbeaver.DBException;
 import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
 import org.jkiss.dbeaver.model.struct.rdb.DBSCatalog;
@@ -30,13 +31,14 @@ public interface DBCExecutionContextDefaults<CATALOG extends DBSCatalog, SCHEMA
 
     CATALOG getDefaultCatalog();
 
+    @Nullable
     SCHEMA getDefaultSchema();
 
     boolean supportsCatalogChange();
 
     boolean supportsSchemaChange();
 
-    void setDefaultCatalog(DBRProgressMonitor monitor, CATALOG catalog, SCHEMA schema) throws DBCException;
+    void setDefaultCatalog(DBRProgressMonitor monitor, CATALOG catalog, @Nullable SCHEMA schema) throws DBCException;
 
     void setDefaultSchema(DBRProgressMonitor monitor, SCHEMA schema) throws DBCException;
 

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/exec/DBExecUtils.java

@@ -394,7 +394,7 @@ public class DBExecUtils {
         boolean changeCatalog = (curCatalogName != null ? !CommonUtils.equalObjects(curCatalogName, newCatalogName) : newCatalog != null);
 
         if (newCatalog != null && newSchema != null && changeCatalog) {
-            contextDefaults.setDefaultCatalog(monitor, newCatalog, newSchema);
+            contextDefaults.setDefaultCatalog(monitor, newCatalog, contextDefaults.supportsSchemaChange() ? newSchema : null);
         } else if (newSchema != null && contextDefaults.supportsSchemaChange()) {
             contextDefaults.setDefaultSchema(monitor, newSchema);
         } else if (newCatalog != null && changeCatalog) {